Multilayer material, method for making same and use as...

Details Multilayer material, method for making same and use as... Multilayer material, method for making same and use as...

B - Operations, Transporting

32

B

B32B 15/00 (2006.01) B32B 7/10 (2006.01) H01M 4/40 (2006.01) H01M 10/24 (2006.01)

Patent

CA 2640173

The invention concerns a multilayer material comprising a solid substrate and at least two superimposed solid layers containing particles of an electrochemically active material, the first solid layer adhering to the solid substrate and the second layer adhering to the first solid layer. Said multilayer material has a constant thickness of upper layer not less than 95% and a depth of penetration of the second layer into the first layer which is less than 10% of the thickness of the first layer, and enables as electrode constituent, generators having a low risk of overload degradation to be prepared.

Material) multi-couches comportant un support solide et au moins deux couches solides superposees qui contiennent des particules d'un materiau electrochimiquement actif, Ia premiere couche solide adhere au support solide et Ia deuxieme couche solide adhere a Ia premiere couche solide. Ce materiau multi-couches presente une Constance d'epaisseur de couche superieure ou egale a 95% et une profondeur de penetration de Ia deuxieme couche dans Ia premiere couche qui est inferieure a 10 % de I'epaisseur de Ia premiere couche, et il permet, comme element constitutif d'electrode, de preparer des generateurs presentant un faible risque de degradation en surcharge.

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